New Module: gitlab_deploy_key and related tests (#40097)

* Added module gitlab_deploy_key and related tests

* Fix sanity check issues

* Refactor to use common util method, add check_mode support

* Fix module shebang

lib/ansible/module_utils/gitlab.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+
+# (c) 2018, Marcus Watkins <marwatk@marcuswatkins.net>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+import json
+
+from ansible.module_utils.urls import fetch_url
+
+try:
+    from urllib import quote_plus  # Python 2.X
+except ImportError:
+    from urllib.parse import quote_plus  # Python 3+
+
+
+def request(module, api_url, project, path, access_token, private_token, rawdata='', method='GET'):
+    url = "%s/v4/projects/%s%s" % (api_url, quote_plus(project), path)
+    headers = {}
+    if access_token:
+        headers['Authorization'] = "Bearer %s" % access_token
+    else:
+        headers['Private-Token'] = private_token
+
+    headers['Accept'] = "application/json"
+    headers['Content-Type'] = "application/json"
+
+    response, info = fetch_url(module=module, url=url, headers=headers, data=rawdata, method=method)
+    status = info['status']
+    content = ""
+    if response:
+        content = response.read()
+    if status == 204:
+        return True, content
+    elif status == 200 or status == 201:
+        return True, json.loads(content)
+    else:
+        return False, str(status) + ": " + content